using Stripe receive an expired API key

What do we need to do to not hit that error message?

I apologize for the inconvenience. You received this message, because your Stripe API key has expired. In order to fix this, you need to change it by trying to re-connect your payment field to your stripe account.

Stripe: Where do I find my API keys?

Let us know if you need any further assistance.

We tried that, the same person, the coach, tried to register his kid and pay and he received the same error.  What next?  Do we need to enter an API key somewhere or is it done automatically through the connection process?

That can be resolved by re-integrating the payment field with your Stripe account. It will automatically update the API throughout the process. But please do not delete the field as previous payment information will be lost.

Related Guide: How-to-Integrate-Stripe-with-your-Form